@cfr Yes, if you want the line number nodes to be children, you need to introduce multiple delays when creating them.

@SašoŽivanović It is at least easier if it is structured this way. Because the 'pushed down' lines get pushed down too far originally. Anyway, it seems to work. I think I'm finished for now. (Though it will need updating when you release the changes you've been making to Forest, of course.)